Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

$1\: \textbf{:}\left ( \frac 1a + \frac 1b \right )=$	A. \(\large\boldsymbol{\frac {ab} {2} }\)
	B. \(\large\boldsymbol{\frac {a\,+\,b} {2} }\)
	C. \(\boldsymbol{a+b}\)
	D. \(\large\boldsymbol{\frac {a\,+\,b} {ab} }\)
	E. \(\large\boldsymbol{\frac {ab} {a\,+\,b} }\)
	F. \(\large\boldsymbol{\frac {1} {a\,+\,b} }\)

[ 3-1508 - op net sinds 12.1.13-()-2.11.2023 ]

Translation in E N G L I S H

$1\ \div \left ( \frac 1a + \frac 1b \right )=$ See above

Oplossing - Solution

$1 \: \textbf{:} \left ( \frac 1a + \frac 1b \right )= 1 \: \textbf{:} \left ( \frac{b}{ab}+\frac{a}{ab} \right )= 1 \: \textbf{:} \left ( \frac{b+a}{ab} \right )= \frac{ab}{a+b}$

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